使用启用了 proguard 的 GSON [英] Using GSON with proguard enabled
本文介绍了使用启用了 proguard 的 GSON的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我的代码在没有 proguard 的情况下运行良好，但在启用 proguard 时 GSON 不起作用.
My code works perfectly without proguard, but GSON doesn't work when proguard is enabled.
这是它不起作用的代码部分
This is the part of code where it doesn't works
JSONArray mensaje = response.getJSONArray("categorias");
// Parsear con Gson
Categorias[] categorias = gson.fromJson(mensaje.toString(), Categorias[].class);
Log.d("mainfragment","desc categoria "+categorias[0].getDescripcionCategoria());
mainfragment 的日志打印为 null
mainfragment's log prints null
# Output
D/Dato categorias﹕ Respuesta: {"categorias":[{"idCategoria":"22","imagenCategoria":"ic_aseguradora","descripcionCategoria":"Aseguradoras"},{"idCategoria":"24","imagenCategoria":"ic_bar","descripcionCategoria":"Bares"},{"idCategoria":"12","imagenCategoria":"ic_boutique","descripcionCategoria":"Boutiques"},{"idCategoria":"6","imagenCategoria":"ic_cafe","descripcionCategoria":"Cafeterias"},{"idCategoria":"21","imagenCategoria":"ic_ciber","descripcionCategoria":"Ciber"},{"idCategoria":"10","imagenCategoria":"ic_estetica","descripcionCategoria":"Estéticas"},{"idCategoria":"1","imagenCategoria":"ic_farmacia","descripcionCategoria":"Farmacias"},{"idCategoria":"7","imagenCategoria":"ic_ferreteria","descripcionCategoria":"Ferreterias"},{"idCategoria":"16","imagenCategoria":"ic_gas","descripcionCategoria":"Gas"},{"idCategoria":"23","imagenCategoria":"ic_gasolinera","descripcionCategoria":"Gasolineras"},{"idCategoria":"4","imagenCategoria":"ic_gym","descripcionCategoria":"Gimnasios"},{"idCategoria":"2","imagenCategoria":"ic_hotel","descripcionCategoria":"Hoteles"},{"idCategoria":"15","imagenCategoria":"ic_lavanderia","descripcionCategoria":"Lavanderias"},{"idCategoria":"19","imagenCategoria":"ic_muebleria","descripcionCategoria":"Mueblerias"},{"idCategoria":"25","imagenCategoria":"ic_optica","descripcionCategoria":"Ópticas"},{"idCategoria":"20","imagenCategoria":"ic_pasteleria","descripcionCategoria":"Pastelerias"},{"idCategoria":"17","imagenCategoria":"ic_pizza","descripcionCategoria":"Pizzerías"},{"idCategoria":"13","imagenCategoria":"ic_purificadora","descripcionCategoria":"Purificadoras de agua"},{"idCategoria":"5","imagenCategoria":"ic_restaurant","descripcionCategoria":"Restaurantes"},{"idCategoria":"11","imagenCategoria":"ic_ropa","descripcionCategoria":"Ropa"},{"idCategoria":"9","imagenCategoria":"ic_salon","descripcionCategoria":"Salones de fiestas"},{"idCategoria":"3","imagenCategoria":"ic_sonido","descripcionCategoria":"Sonidos"},{"idCategoria":"28","imagenCategoria":"ic_taqueria","descripcionCategoria":"Taquería"},{"idCategoria":"8","imagenCategoria":"ic_taxi","descripcionCategoria":"Taxis"},{"idCategoria":"14","imagenCategoria":"ic_tortilleria","descripcionCategoria":"Tortillerias"},{"idCategoria":"27","imagenCategoria":"ic_veterinaria","descripcionCategoria":"Veterinarias"},{"idCategoria":"18","imagenCategoria":"ic_vinateria","descripcionCategoria":"Vinaterías"},{"idCategoria":"26","imagenCategoria":"ic_zapateria","descripcionCategoria":"Zapaterías"}],"estado":1}
D/mainfragment﹕ desc categoria null
这是我的proguard规则
This are my proguard rules
#GoogleMaps
-keep class * extends java.util.ListResourceBundle {
protected Object[][] getContents();
}
-keep public class com.google.android.gms.common.internal.safeparcel.SafeParcelable {
public static final *** NULL;
}
-keepnames @com.google.android.gms.common.annotation.KeepName class *
-keepclassmembernames class * {
@ccom.google.android.gms.common.annotation.KeepName *;
}
-keepnames class * implements android.os.Parcelable {
public static final ** CREATOR;
}
#Volley?
-optimizationpasses 5
-dontusemixedcaseclassnames
-dontskipnonpubliclibraryclasses
-dontpreverify
-verbose
-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
-keep public class * extends android.app.Activity
-keep public class * extends android.app.Application
-keep public class * extends android.app.Service
-keep public class * extends android.content.BroadcastReceiver
-keep public class * extends android.content.ContentProvider
-keep public class * extends android.app.backup.BackupAgentHelper
-keep public class * extends android.preference.Preference
-keep public class com.android.vending.licensing.ILicensingService
-dontnote com.android.vending.licensing.ILicensingService
-keepclassmembers class * implements java.io.Serializable {
static final long serialVersionUID;
private static final java.io.ObjectStreamField[] serialPersistentFields;
private void writeObject(java.io.ObjectOutputStream);
private void readObject(java.io.ObjectInputStream);
java.lang.Object writeReplace();
java.lang.Object readResolve();
}
-keepclasseswithmembernames class * {
native <methods>;
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet);
}
-keepclasseswithmembers class * {
public <init>(android.content.Context, android.util.AttributeSet, int);
}
-keepclassmembers class **.R$* {
public static <fields>;
}
-keepclassmembers class * extends android.app.Activity {
public void *(android.view.View);
}
-keepclassmembers enum * {
public static **[] values();
public static ** valueOf(java.lang.String);
}
-keep public class * {
public protected *;
}
-keep class * implements android.os.Parcelable {
public static final android.os.Parcelable$Creator *;
}
-keep class android.support.v7.widget.SearchView
-keep class android.support.v7.widget.**{*;}
-keep class android.support.v4.app.** { *; }
-keep interface android.support.v4.app.** { *; }
-keep class com.actionbarsherlock.** { *; }
-keep interface com.actionbarsherlock.** { *; }
-keep class com.android.volley.** { *; }
-keep interface com.android.volley.** { *; }
-keepattributes *Annotation*
##---------------Begin: proguard configuration for Gson ----------
# Gson uses generic type information stored in a class file when working with fields. Proguard
# removes such information by default, so configure it to keep all of it.
-keepattributes Signature
# For using GSON @Expose annotation
#-keepattributes *Annotation*
-keepattributes EnclosingMethod
# Gson specific classes
-keep class sun.misc.Unsafe { *; }
-keep class com.google.gson.stream.** { *; }
# Application classes that will be serialized/deserialized over Gson
-keep class Categorias.data.model.** { *; }
-keep class Categorias.** { *; }
# Application classes that will be serialized/deserialized over Gson
-keep class com.google.gson.examples.android.model.** { *; }
-keep class com.puertosoft.appcomercialdelpuerto.android.model.** { *; }
-keep class com.puertosoft.appcomercialdelpuerto.model.** { *; }
-keep class com.puertosoft.appcomercialdelpuerto.model.User { *; }
# Add the gson class
-keep public class com.google.gson
# Add any classes the interact with gson
-keep class com.puertosoft.appcomercialdelpuerto.models.ChatModel { *; }
-keep class com.puertosoft.appcomercialdelpuerto.models.FeedModel { *; }
-keep class com.puertosoft.appcomercialdelpuerto.android.models.ChatModel { *; }
-keep class com.puertosoft.appcomercialdelpuerto.android.models.FeedModel { *; }
-libraryjars /build/intermediates/pre-dexed/debug/gson-2.3-08958b96da94c86264ec30e35a9d524bac95d2df.jar
-printmapping outputfile.txt
-renamesourcefileattribute SourceFile
#-keepattributes SourceFile,LineNumberTable
这是受影响的班级
public class Categorias {
private String idCategoria;
private String descripcionCategoria;
private String imagenCategoria;
public Categorias(String idCategoria, String descripcionCategoria, String imagenCategoria){
this.idCategoria=idCategoria;
this.descripcionCategoria=descripcionCategoria;
this.imagenCategoria=imagenCategoria;
}
public String getIdCategoria(){
return idCategoria;
}
public String getDescripcionCategoria(){
return descripcionCategoria;
}
public String getImagenCategoria(){
return imagenCategoria;
}
}
推荐答案
变量名会被 proguard 混淆，让你得到类似的东西
Variable names will be obfuscated with proguard, leaving you with something like
private String a;
代替
private String descripcionCategoria;
你可以添加 proguard 规则，这样一些类就不会被混淆.我使用这些逃脱了它:
You can add proguard rules so some classes don't get obfuscated. I got away with it using these:
-keepattributes Signature
# POJOs used with GSON
# The variable names are JSON key values and should not be obfuscated
-keepclassmembers class com.example.apps.android.Categorias { <fields>; }
# You can apply the rule to all the affected classes also
# -keepclassmembers class com.example.apps.android.model.** { <fields>; }
如果你的 POJO 类名也用于解析，那么你还应该添加规则
If your POJO class name is also used for parsing then you should also add the rule
-keep class com.example.apps.android.model.** { <fields>; }
在你的情况下，没有使用注释，如果你这样做，你会需要这个
In your case, annotations are not used, you would need this if you do
# Keep the annotations
-keepattributes *Annotation*
<小时>
另一种解决这个问题的方法是使用SerializedName注解并让类变得模糊.为此，您仍然需要 -keepattributes *Annotation* 规则.
Another way to solve this problem is to use the SerializedName annotation and let the class get obfuscated. For this you will still need the -keepattributes *Annotation* rule.
import com.google.gson.annotations.SerializedName
@SerializedName("descripcionCategoria")
private String descripcionCategoria;
这篇关于使用启用了 proguard 的 GSON的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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